In the short story "Strange Creatures" Kristine Kathryn Rusch writes:
Retsler reached inside, and pulled out a Big Mac and fries...He pulled the wrapper back and took a bite, tasting mustard, catsup, pickles and mayonnaise long before he got to the meat.I'm guessing it's been a long time since she had a Big Mac. If she ever has. Remember the jingle?
Two all-beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame-seed bun.
No mustard. No catsup. And especially no mayonnaise, which doesn't come on any McDonald's burger. Jolted me right out of the story for a moment...
Yes, I know the special sauce may well have catsup and mayo in it, but I really doubt anybody, especially a dog-tired cop who thinks Big Macs and fries smell like "sugar and grease", has a refined-enough to palate to actually taste them. And there's still no mustard. (And the onions! What about the onions? not to mention the cheese...) In other words, a Big Mac is not just a regular hamburger. Would it have killed her to taste one before writing about it in such detail?